| 摘要 |
PROBLEM TO BE SOLVED: To prevent an adverse effect on a camera system, in which a near infrared ray is emitted from a light source and reflection light thereof is received by a camera, even when a counter party has the same camera system. SOLUTION: A near infrared camera system includes: a near infrared light source 20 which emits near infrared rays; a first polarizing filter 30 which restricts a polarizing direction of a near infrared ray L0 emitted in a specific direction; a near infrared image sensor 70 which captures a two-dimensional image; a second polarizing filter 80 in which a near infrared ray L1 of which the polarizing direction has been restricted in the specific direction by the first polarizing filter 30 is reflected on an obstacle 300 and a polarizing direction of a near infrared ray L2 carrying an image caused by the reflection is restricted into a near infrared ray L3 in the polarizing direction due to the first polarizing filter 30; and a display device 110 which displays thereon a reflection image of the near infrared ray L3 as a visible image, wherein, the polarizing direction of the first polarizing filter 30 watched from the near infrared light source 20 and the polarizing direction of the second polarizing filter 80 watched from the image sensor 70 are aligned. COPYRIGHT: (C)2009,JPO&INPIT
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